Wood-heel clamp



Aug. 5, 1924. 1,503,728

T. F. TYLER WOOD HEELv CLAMFD Filed June I L 4 12 3 fwn-m I lY l. l L

` Invem;

Patented Aug. 5, 1924.

UNITED' STATES Application led .Tune 14, 1923. Serial No."645,309.

To all 'whom t mwy concern.'

Be it known that I, THADDEUS FRANK TYLER, a citizen of the UnitedStates, and resident of Haverhill, in the county of Essex and State ofMassachusetts, have invented an Improvement in Wood-Heel Clamps, of

usually consisted of an arm adjustably mounted on a fixed vertical post,said arm .having at its end a quick acting cam which is arranged to beoperated by a handle connected thereto, and to force the upper clampingmember into engagement with the With this form of device it is necessaryto have the relative adjustment of the base-supporting means and the armcorrespond quite accurately to the height of the heel, as the motionsecured by the` cam is very short. As the time required to place theheel in position and rto remove it is a factor of considerableimportance, where large numbers of heels are to be covered, the timelost in making adjustments and in operating the cam lever become mattersof considerable importance.

The chief objection, however, to the construction which has generallybeen used for this purpose is that the arm and camoperatedclamping'means for engaging the/topof the heel are so supported that theview` which the operator has of the surfaces to be covered is seriouslyobstructed, and it is very desirable, in orderthat the work may bereadily and properly done, for the operator to be able to see withoutdifficulty all portions of the surfaces to be covered. It is alsodesirable that the clamp for holding l the heel be so constructed thatthe manipulation of the covering, in placing it in position, smoothingout all wrinkles, and drawing it .tightly over the surfaces to which itis connected, shall be interfered with as little as oible.

he objects of my invention are to provide a form of clamp for thepurpose, above indicated,A which may be opened and closed by means ofya' treadle, `so that the o erator will have both hands free for removingone heel and placing. another in position, and further to provide aclamp, which is so constructed that the view which the operator has ofthe work will be practically unobstructed, and the work may be rapidlyand satisfactorily performed.

I accomplish these objects by the means hereinafter described andillustrated in the accompanying drawing, in Whichz- Fig. ,1 is a centralvertical sectional view of a form of heel clamp containing an embodimentof my invention, and

Fig. 2 is a plan view thereof.

As shown in the drawing, adapted to be mountedI upon which a post 2 ismounted, said post having a threaded bore extending from its upper end,in which a stem 3 is threaded, said stem having a pair of ears 4 at itsupper end, between which a iiange' 5, on the under side of the baseengaged member 6, is arranged to tilt on a pivot 7. The lower edgeportion of the flange 5 is provided with a series of corrugations or.notches 8, which are adapted to be. engaged by a spring pressed bolt 9mounted in the stem 3, said bolt having a handle 10 for depressing thesame. so that the inclination of the base engaging member 6 may bevaried according to the pitch of the heel, and the top may be adjustedto a horizontal position. A lock nut the clamp is 11 is provided on thestem 3 so that the stem may be securely locked in any vposition to whichit may be adjusted. A tubular casing 12 isvixed in the bench 1, and arod 13 is slidably mounted therein, said rod being extended entirelytherethrough, and through' the opening in the bench, and being guidedtherein by a cap 18 on the upper end, .and a plug 26 inthe lower endof-said casing. The lower end of said rod 13 is loosely connected to alever 14 pivoted on a bracket 15 on the under side of the bench, theopposite end of the lever 14 being connected bv a link 16 to a treadle17 so that, when the treadle is depressed, the rod l13 may be lifted. Acoiled spring 19 is arranged in the casing 12 about the rod 13 betweenthe cap 18 anda pin 20 fixed in the rod 13, so that said spring willnormally act to press the rodk13 downwardly. .The upper end portion ofthe rod13 lis provided with an internally screw threaded bore to receiveone end of an arm 21, which is screwed therein, said arm being adaptedto'be locked in any position to which' it may be adjusted by a a bench1, in

lock nut 22 threaded thereon and adapted to be screwed against the endof the rod. Said arm 21 consists of a rigid metal rod of4relatively-small diameter, bent at right anposition of Fig. 1, in whichposition the heel may be readily placed in position on' the base member6, or removed therefrom.

4When the heel has been placed in position, the'pressure on the treadlewill be removed, permitting the spring 19 to force the arm downwardlyand clamp the heel firmly onto the base 6, so that the heel may beclamped almost instantly without using the hands. As the arm 21 is ofsmall diameter, it will not obstruct the View of the operator to anobjectionable extent, so that after theY heel has been clamped inposition thevcovering may`be applied in the correct position and drawntightly over the surface of the heel, so that all wrinkles will beremoved. This work may be rapidly performed, as the work 'of the handsof the operator as well as the vision will be practically unobstructed.The range of movement provided by the treadle is-such that heels whichvary considerably in height may be clamped in position withoutreadjustment of the parts, but in case adjustment is necessary for widervariations, the arm 21 may be adjusted in the rod 13, by screwing it upor down therein, or the height of the base support my be adjusted, aspreviously described. When the heel is removed and pressure on thetreadle is -re- Y moved, the pin 20 will rest on the plug 26, which willserve as a stop.

I claim- A heel clamp comprising a fixed member having an upwardlyfacing heel-supporting face, a vertically disposed casing mountedadjacent said member, a rod extending through said casing andreciprocally mounted therein, ya spring engaged with said casing and rodto press the rod downward, a treadle for lifting said rod, and a rigidarm connected to the upper end of said rod and arranged for adjustmentlongitudinally thereof, said arm being extended horizontally and havinga depending end portion provided with a heel top engaging face at itslower end arranged in cooperative relation with said supporting face. I

In testimony whereof I have signed my name to this specication.

THADDEUS F. TYLER.

